The original agreement called for $40 million from the city, the Frisco Economic Development Corp., the Frisco Community Development Corp. and Frisco ISD. FC Dallas, in turn, will pay an extra $1 million in rent for the city-owned stadium each year through 2037 to help fund the upgrades.

Last summer, when construction costs were soaring, project estimates came in $16 million over budget. Hunt and his brother, Clark, ordered some major design changes to get costs back in line. This time, the Hunts are committed to paying the difference to be able to include all the extras they want.

"It's the right thing to do," Dan Hunt said. "We have an opportunity to build something so special, so innovative, and honor the legacy of all those that have come before us in the game of soccer."

Fans saw some of the early changes at FC Dallas' home opener in March. The improvements include two huge high-definition video boards, a new audio system, four new private suites, a club suite for larger groups and a new Winners Club by WinStar World Casino and Resort.

"It's head and shoulders above what it was before," Frisco City Council member Tim Nelson said.

Still under construction is the revamped south end of the stadium that will include new locker rooms with separate field-level tunnel entrances, more club seats with a patio area and a new team store. Hunt said two more giant video boards will be added to the south end.

The seating on the south end will be completed in time for the NCAA's FCS football championship in January. The event has been held at Toyota Stadium since 2010.

The Hall of Fame museum will feature 11 separate interactive elements — from designing your own scarf (that can be later shipped) to building your own national team. One area will highlight various professional soccer leagues in America. Another will highlight the Hall of Fame inductees. Embedded in the floor will be 22 magic moments in the history of soccer.

The museum will also give a nod to youth soccer. Throughout the space will be 400 artifacts displayed on a rotating basis from among the 80,000-plus items in the Hall of Fame's collection.

With all of the new elements, Hunt said, "This changes the paradigm for sports museums in America."

The Hall of Fame Museum is expected to hold its grand opening with an induction ceremony in the fall of 2018, Hunt said.

The museum's entrance along Frisco's Main Street has a swoosh lit by LEDs that can change colors depending on the occasion or the team to highlight. Hunt described the iconic piece as a modern view of the sport's scarf tradition.

A conceptual, computer-generated rendering at night of the front facade of the National Soccer Hall of Fame at Toyota Stadium in Frisco, released May 24, 2017.

(HKS)

A conceptual, computer-generated rendering of the new south end of Toyota Stadium and the National Soccer Hall of Fame at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

A conceptual, computer-generated rendering of the new FC Dallas team locker room at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

A conceptual, computer-generated rendering of the Lamar Hunt U.S. Open Cup Club at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

A conceptual, computer-generated rendering of the new Hall of Fame soccer specialty store, at the National Soccer Hall of Fame at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

A conceptual, computer-generated rendering of the Hall of Fame Club set up for a game night, at the National Soccer Hall of Fame at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

A conceptual, computer-generated rendering of the Hall of Fame Club set up for a banquet, at the National Soccer Hall of Fame at Toyota Stadium in Frisco, released May 24, 2017. The U.S. Soccer Federation and FC Dallas released the image. Part of a $40 million renovation at Toyota Stadium, the National Soccer Hall of Fame is a public-private partnership among FC Dallas, the City of Frisco, Frisco Independent School District and the U.S. Soccer Federation. The work is slated for completion by winter 2018.

Already, groups and companies are lining up to book private events in the new space. Hunt said his staff will also be looking for other events to keep the space in use.

"This is a dream that's coming true," Hunt said. "We're excited for this to be open and up and running."